Wiki Tag: vacuum

Friction Coefficient Tables in Air and Vacuum

09.02.2017 tribonet

Friction coefficient table of solid lubricants, metals, plastics and anti-friction materials Friction coefficient table for various material pairs in atmosphere and vacuum (see the definition of friction coefficient) is shown below. The data was collected […]

Controlling Wettability and Liquid Repellence on Material Surfaces

24.02.2020

Industries around the world would welcome new, improved engineered surfaces that included reversibly switching interfacial properties, including the ability to repel liquids and wettability. Wettability is the ability of a liquid to maintain contact with [...]
Keeping the Wind in Your Sails

19.07.2017

Just like any mechanical device, a wind energy system needs timely, appropriate lubrication in order to function reliably and predictably. Wind turbines routinely withstand extremely demanding conditions: vibration, high mechanical loads, contamination and moisture are [...]
Triboelectric Generator to Power Smart Knee Implants

27.05.2019

The word ‘smart’ in today’s world has to do with information technology and operating system. It is used in many fields of endeavor including medicine. IT-driven knee implants can soon become a treatment method, kudos [...]
Superlubricity of nanodiamonds glycerol colloidal solution

22.03.2016

Earlier we reported about superlubricity achieved with a mixture of water and 30 [wt%] glycerol by researchers from Tsinghua University, Beijing. The same investigators just published a paper using this as a base lubricant and [...]
Improved bonding of low friction PTFE

07.11.2017

The convenience of non-stick, Teflon-coated cookware is appreciated in kitchens worldwide, particularly by anyone doing the washing up. The chemical making up Teflon, polytetrafluoroethylene or PTFE, is one of the slipperiest materials known. Outside the [...]